Grasp the Magic Since Used

Within one round of another's teleport spell, a caster can use grasp the magic since used to bring the teleporter right back. The caster must remain within 100 feet of the teleporter's original location.

This more demanding version of seek the traveler works on objects teleported via instant summons* or through a succor spell, but not on those that have passed through a dimension door or other magical portal (a cubic gate, etc.).